Guild dues requirements are waived for new characters and those who had 
less than 500k exp after to their last reinc.

Characters who have earned more than this amount need to pay dues to
advance their primary guild level.

Level - Cost
---------------
  16  -  1k
  17  -  3k
  18  -  5k
  19  -  7k
  20  -  9k

See also: HELP GUILD DUES